A lightweight, fast embedded JavaScript template engine for Node.js, Deno, and the browser, written in TypeScript.
Eta is a lightweight and fast embedded JavaScript templating engine that works in Node.js, Deno, and browser environments. It allows developers to generate dynamic HTML or text content using a simple, EJS-like syntax while focusing on performance, small bundle size, and extensive configurability.
JavaScript and TypeScript developers building web applications, static site generators, or server-side rendering systems who need a fast, minimal templating solution.
Developers choose Eta for its zero dependencies, tiny footprint (~3.5 KB), cross-platform support, and powerful features like layouts, partials, and plugins, making it a reliable and efficient alternative to heavier engines.
Embedded JS template engine for Node, Deno, and the browser. Lighweight, fast, and pluggable. Written in TypeScript
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No external libraries required, ensuring a lean setup and reduced maintenance overhead, as highlighted in the README's key features.
Only ~3.5 KB minzipped, making it ideal for performance-sensitive applications where every kilobyte counts, as emphasized in the documentation.
Works seamlessly across Node.js, Deno, and browser environments with consistent behavior, supporting modern JavaScript runtimes without extra configuration.
Supports custom delimiters, plugins, caching, and layout management, allowing developers to tailor the engine to specific project needs, as detailed in the features list.
Includes precompilation, partials, async rendering, and robust error handling, enabling complex template logic without bloating the codebase, with better quote and comment support than alternatives like doT or EJS.
Many integrations, such as for Webpack, are community-provided and not officially maintained, which could lead to compatibility issues or lack of long-term support, as noted in the README.
Compared to more established templating engines like EJS or Handlebars, Eta has a smaller community and fewer third-party plugins and tools readily available, potentially increasing development time for custom needs.
While configurable, setting up custom delimiters, plugins, and caching might require additional boilerplate code and deeper understanding, which could be a barrier for quick prototyping or simple use cases.
eta is an open-source alternative to the following products: